Allen‑Bradley 1762-IF4 Module
The 1762-IF4 is an Allen-Bradley MicroLogix 1200 with a 4-channel current/voltage analog input module. It has a Delta-Sigma converter and 4 differential (bipolar) inputs. Its analog operating voltage range is -10 to 10 Volts DC normal and -10.5 to 10.5 Volt DC full-scale. Its analog operating current range is 4 to 20 mA normal and -21 to 21 mA at full scale. This module enhanced the functionality of MicroLogix by allowing additional I/O to the system. It requires minimal spacing and can be either DIN rail or panel mounted. The module communicates and receives information on 5 to 24 Volts DC power via the 1762 bus interface.
When wiring the input terminal blocks, a finger-safe cover is present. A flat ribbon cable is used to attach various I/O modules. The 1762-IF4 module supports 2-wire, 3-wire, or 4-wire transmitter configuration. During troubleshooting, users should always stand away from the equipment and always check it for any program change. Safety circuits should always be wired in series to the master relay.